Spindle and bearing



(No Model.)

W. F.. DRAPER.

SP-INDLE AND BEARING.

No. 328,201. Patented Oct. 13, 1885.

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UNITED STATES PATENT OFFICE.

WVILLIAM F. DRAPER, OF HOPEDALE, MASSACHUSETTS.

SPINDLE AND BEARING.

SPECIFICATION forming part of Letters Patent No. 328,201, dated October13, 1885.

Application filed February 16, 1885. Serial No. 156,067. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM F. DRAPER, of Hopedale, county of Worcester,and State of Massachusetts, have invented an Improvement in Spindles andBearings, of which the following description, in connection with theaccompanying drawing, is a specification, like letters on the drawingrepresenting like parts. In that class ofspindles denominated as topspindles, or those in which the foot or pintle of the spindle ispermitted to wander or move laterally to a certain extent in everydirection to enable the spindle to find its true center of rotationaccording to the load upon it, it has been customary, so far as I amaware, with all sleeve-whirl spindles to employ a loose bolster betweenthe pintle of the spindle and the hollow standard or support extendedinto the chamber of the sleeve-whirl to provide a lateral bearing forthe spindle above the line of the band-pull.

In this my invention I do away with the usual loose bolster and give tothe pintle of the spindle a double conical shape, the greatest diameterof the pintle being in the line of the band-pull.

The drawing, which is in vertical section, with the exception of thespindle, which is in elevation, represents a sleeve-whirl spindle andits supporting devices constructed in accordance with my invention.

The rail R has secured to it by the nut N a support or standard, S,bored to contain oil and to receive within it, in the oil, the pintle ofthe spindle at, having an attached sleevewhirl, b, the support orstandard entering the sleeve-whirl and extending therein above the linea; as, the line of the band-pull.

The pintle of the spindle within the case from the line .90 w-the lineof the band-pull-- is tapered in both directions,or up and down, leavingthe pintle of greatest diameter in the line of the band-pull, the saidpoint of greatest diameter located in the line of the bandpull on thewhirl acting as a fulcrum over which the spindle may rock as the bladeand foot of the spindle move, while the latter moves on the step c inseeking its true center of rotation.

The pintle of my improved spindle resembles two frustra of cones ofslight taper joined base to base, the latter being in the line of theband-pull. I do not claim a double conical bolster, as I am aware thatthat is not new. I have dispensed altogether with the bolster and withthe usual fibrous picking material.

The space or chamber on the standard S may be supplied with oil in anyusual mauner, or as bolster-supports are supplied with oil.

In the drawing the spindle from the line was upward, and downward to thepoints where the pintle is of least diameter, shows a true taper; but itis obvious that the invention herein contained would be the same werethe pintle of the spindle slightly convex between the lines x w, 3 y,and z 2 instead of straight. In the drawing the part of the pintle ofgreatest diameter, and which serves asa fulcrum or point about which thepintle may rock asa le- 70 ver of the first order, is very narrow and isin the line :0 as; but I do not desire to limit my invention to theexact distance or length of this largest diameter of the pintle, as thesame may extend somewhat from the linexa: with- 75 in the width of thewhirl.

I claim- A rigid tubular standard or support closed at its bottom tocontain oil, combined with a sleeve whirl spindle having a pintle, thelargest diameter of which is in the line of the band-pull, the pintlebeing of smaller diameter above and below the liueofthebandpull,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WVM. F. DRAPER.

Witnesses:

FRANK J. DUTOHER, WM. J. Woons.

